A hacker falsely posted on the Twitter account of Oscar Pistorius' older brother Saturday that the South African Olympian was going to do media interviews, a family spokeswoman said.

Carl Pistorius didn't post such a tweet, and he and his sister, Aimee, were canceling all their social media accounts Saturday, said family spokeswoman Janine Hills. All three Pistorius siblings live in South Africa, she said.

On Friday, Oscar Pistorius was freed from jail on $112,000 bail eight days after the shooting death of his model girlfriend, Reeva Steenkamp, 29.

Pistorius, 26, is charged with premeditated murder in her February 14 death.

"It is most unfortunate that during this sensitive time, someone would choose to hack into Oscar Pistorius older brother, Carl Pistorius' Twitter handle," Hills said in a statement. "Carl did not tweet this afternoon, out of respect to Oscar and Reeva."

Oscar Pistorius said he fired his gun because he thought an intruder was hiding in a toilet room inside the bathroom of his Pretoria home, not realizing it was actually Steenkamp inside.

"We are acutely aware of the fact that this is only the beginning of a long road to prove that, as we know, Oscar never intended to harm Reeva, let alone cause her death," Arnold Pistorius said in a statement. "We realize that the law must run its course, and we would not have it any other way."